Centuries: 9th century - 10th century - 11th century
Decades: 880s 890s 900s 910s 920s - 930s - 940s 950s 960s 970s 980s
Years: 928 929 930 931 932 - 933 - 934 935 936 937 938
Births
Deaths
... Their striking property is that the axis of a spinning gyroscope will resist a force applied to it and will start rotating perpendicular to the force applied. Th ...